84087960 has 64 divisors (see below), whose sum is σ = 275201280. Its totient is φ = 20384640.

The previous prime is 84087959. The next prime is 84087973. The reversal of 84087960 is 6978048.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30532 + ... + 33171.

It is an arithmetic number, because the mean of its divisors is an integer number (4300020).

Almost surely, 2^84087960 is an apocalyptic number.

It is an amenable number.

84087960 is an abundant number, since it is smaller than the sum of its proper divisors (191113320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84087960 is a wasteful number, since it uses less digits than its factorization.

84087960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63728 (or 63724 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 84087960 is about 9169.9487457673. The cubic root of 84087960 is about 438.1047267351.

The spelling of 84087960 in words is "eighty-four million, eighty-seven thousand, nine hundred sixty".